Improvement in wood-planing machines



A.M. MORTIMER. WOOUPLANING-MACHINE.

Patented Oct. 3, 1876.

No.18Z,84=6.

WITNESSES Q vmom ZZZ ATTBBHEYS.

N. PETERS. PNOTO-LITHOGRAPHER, WASHINGTON, D. Q

UNITED STATES PATENT OFFIo.

IMPROVEMENT WOOD-PLANING MACHINES.

Specification forming part of Letters Patent No. 182,846, dated October3, 1876; application filed August 14, 1876.

To all whom it may concern Be it known that I, ANDREW M. MORTIMER, ofSalt Lake City, in the county of Salt Lake and Territory of Utah, haveinvented a new and useful Improvement in Wood-Planing Machines, of whichthe following is a specification:

Figure l is a vertical longitudinal section of my improved machine takenthrough the line x as, Fig. 2. Fig. 2 is a top view of the same.

Similar letters of reference indicate corresponding parts.

The object of this invention is to improve the construction ofwood-planing machines in such a way that a board, after being passedthrough the machine and being planed upon one side, may be raised bymechanism passed back or returned through the machine and planed uponthe other side.

The invention consists in the combination of the rollers, the pivotedframes, the connecting-bars, and the levers, with the frame of a planerfor raising the boards from the forward feed-rollers to the returnfeed-rollers of said planer; in the combination of the upperor returnfeed-rollers with the ordinary feed-rollers for returning the boardabove the cutter-head; in the combination of the small roller with thefeed-rollers of the planer for raising the returning board out of thesweep of the cutters; and in the combination of the receivingroller withthe frame and the feed-table of the planer to receive the board as it isreturned, as hereinafter fully described.

A is the frame of the machine. B is the table from which the board isfed to the rear feed-rollers O D, the upper one, D, of which isadjustable, and by which the board is fed forward to the cutter-head E.The board, while being planed, rests upon the bed F placed beneath thecutter-head E. As the board passes the cutter-head E it is received andcarried forward by the forward feed-rollers G H. In front of the rollersD and G are placed the chip-guards I. As the board passes out in frontit is received upon the roller J, pivoted to the frame A.

As the rear end of the board passes out from between the rollers G H thetwo rollers K L are raised, which raises the board, so

that it can pass in between the rollers H M. The rear roller K istoothed, so that it may feed the board back to the rollers H M, andshould be lowered out of the way as soon as the board has been graspedby the rollers H M, the roller L being lowered as soon as the boardleaves it. As the board passes back between the rollers H M its lowerside is planed by the cutters E, and its end, as it passes said cutters,is grasped by the feedrollers D N. As the board passes back from therollers D N it is received upon the roller 0 pivoted to the rear part ofthe frame A, and which is made of such a size as not to interfere withthe ordinary working of the machine. P is a small adjustable rollerplaced a little in the rear of the roller H, and, which, when it isdesired to pass the board back without planing its lower side, is raisedto raise the said board above the sweep of the cutters E. The rollers KL are pivoted to the upper ends of two frames, Q R, the lower ends ofwhich are pivoted to the lower part of the frame A. To the frames Q Rare pivoted, respectively, the connecting-bars S T, which are fartherconnected with said frames Q R by the braces U V, so that the saidframes may be raised squarely. The rear ends of the connecting-bars S Tare pivoted to the levers W X, the lower ends of which are pivoted tothe lower part of the rear end of the frameA, so that the attendant caneasily reach and operate them to raise and lower the rollers K L, asrequired.

To the journal of the forward feed-roller H is attached a pulley, Y,around which passes a band, Z, which also passes around a pulley, A,attached to the pivot of the frame Q that carries the rear roller K.Around the pulley A passes a band, B, which also passes around a pulley,G, attached to the journal of the rear or toothed roller K. By thisarrangement the band B will have the same tension however the roller Kmay be adjusted.

Having thus described my invention, I claim as new and desire to secureby Letters Patcut- 1. The combination of the rollers K L, the pivotedframes Q 70, the connecting-bars S T, and the levers W X, with the frameA, of a planer for raising the boards from the forward.

feed-rollers to the return feed-rollers of said cutters, substantiallyas herein shown and" planer, substantially as herein shown anddedescribed. scribed. 4. The combination of the receiving-roller 2. Thecombination of the feed-rollers M N O with the frame A and thefeed-table B, of

with the ordinary feed-rollers H G and D O, the planer to receive theboard as itis returned, for returning the board above the cutter-headsubstantially as herein shown and described.

F, substantially as herein'shown and described. ANDREW M. MORTIMER.

3. The combination of the small roller P, Witnesses:

with the feed-rollers H M and D N, for raising T. A. MORTIMER,

the returning board out of the sweep of the MORGAN REED.

